linux-kernel - [PATCH 4.14 009/173] erspan: fix error handling for erspan tunnel

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Date:   Mon, 24 Sep 2018 13:50:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, William Tu <u9012063@...il.com>,
        Haishuang Yan <yanhaishuang@...s.chinamobile.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.14 009/173] erspan: fix error handling for erspan tunnel

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Haishuang Yan <yanhaishuang@...s.chinamobile.com>

[ Upstream commit 51dc63e3911fbb1f0a7a32da2fe56253e2040ea4 ]

When processing icmp unreachable message for erspan tunnel, tunnel id
should be erspan_net_id instead of ipgre_net_id.

Fixes: 84e54fe0a5ea ("gre: introduce native tunnel support for ERSPAN")
Cc: William Tu <u9012063@...il.com>
Signed-off-by: Haishuang Yan <yanhaishuang@...s.chinamobile.com>
Acked-by: William Tu <u9012063@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ipv4/ip_gre.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -177,6 +177,8 @@ static void ipgre_err(struct sk_buff *sk
 
 	if (tpi->proto == htons(ETH_P_TEB))
 		itn = net_generic(net, gre_tap_net_id);
+	else if (tpi->proto == htons(ETH_P_ERSPAN))
+		itn = net_generic(net, erspan_net_id);
 	else
 		itn = net_generic(net, ipgre_net_id);